class A { public: void f(); protected: A() {} A(const A&){} }; Examine the class declaration shown above. Why are the default and copy constructors declared as protected? 1. To ensure that A cannot be created via new by a more derived class 2. To ensure that A cannot be copied 3. To ensure that A cannot be used as a base class except when public inheritance has been used 4. To ensure that A cannot be created/copied outside the inheritance chain 5. To ensure that A cannot be instantiated as a static variable

1 Answers  

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What are static type checking?

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What is type of 'this' pointer? Explain when it is get created?

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what is the C++

1 Answers   Wipro,

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Is sorted c++?

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int f() { int I = 12; int &r = I; r += r / 4; int *p = &r; *p += r; return I; } Referring to the sample code above, what is the return value of the function "f()"? a) 12 b) 15 c) 24 d) 17 e) 30

2 Answers   AIG, Quark,

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Differentiate between structure and class in c++.

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Which one is a preferred language C or C++? Why?

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What is a manipulator in c++?

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Explain linked list using c++ with an example?

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class Foo { const int x; protected: Foo(int f); ~Foo(); }; Foo f; Referring to the sample code above, why will the class declaration not compile? a) The variable x is const. b) The destructor is protected. c) The destructor is not public. d) The constructor is protected. e) There is no default constructor.

5 Answers   Quark,

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How c functions prevents rework and therefore saves the programers time as wel as length of the code ?

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